Lock



A ril 2, .1935.

F. w. HEYEL 1,996,376

LOCK

Filed April 14, 1954 5 Sheets-Sheet 2 A This invention relates Ito locks.

Patented Apr. 2, ,1935

1 UNITED Loon" I ration of New @York 12 claims:

object ofgthisinventionis to provide'an improved door lock adapted toebe opened :or closed from the .insideby :a knob or from-the out- 1:5 side by a key, and adapted tobe-set for dead bolting to prevent opening of the look from I the 7 inside by the knob after' the lock has been] closed by the key from theoutside.

l further object of lthis invention vide a'lock of the characterdescribed, constructed to release or render inoperative the setting means each time the lock is opened either by the key or. by the knob. Thus, should agpei son ,leave the premises by, a door provided with my improved lock, the person may open-the lock from the inside by turning-the knob then set the lock, leave the premises, shut the door and lock the lock witha key. Thereafter, the-lock cannot be opened from the inside of the premises by the knob, for example, by a thief enteringthe premises through the window. I T A still further object fof this invention is to provide astrong, compact and durable- -lock--of the character described, which shall comprise comparativlyfew and simple parts, be relative- 1y.inexpensive to manufacture, smooth andpositive in} operation, and withal practical and emcie'nt to'a high'degree. I 7 Other objects of this invention will in part ,be' obvious and in part hereinafter pointed out.

The inventionaccordinglyconsists in the features of construction,combinations of elements, and arrangement ofparts which will be exemplifid in the con truction "hleina'fteri' described, and of which -thesc'ope' of application will be indicated inthe following claims.

the accompanying'diawingsf which is shown one of the various possible embodiments ofmy invention, r I

I Fig. '1 is an elevational interior view of 'aflock embodying the invention, in unlocked condition, with the'rear cover platebi'okenaway andparts .in cross-section;

Fig.2 is a cross-sectional view taken on line 2-2 of Fig. 1; .J H a H Fig; 3 is a-view similar toFig. 1,-but illustrating the'lock in locked condition, the look not being set for dead bolting;

Fig.4 "is a partial view similar to :Fig; -l,-:but

showing the lock set for dead "bolting; ;.and i1 lustrating the position' of the parts :partially 'moved'towa'rd-closingposition';

' Fig.5 is a View similari-tol igr lfi but showing the lock in fully lockedposition;

istopi oa Fig. 6 is-fa cross sectiona l view taltemon line 7 GB f Fig. 1;

-Fig..-7 :isea cross-sectional yiew taken on line Figs-8 isa perspective -view:=of one-of thewer- 5;

ticaLbolts; and I I 1 Fig.9 is va perspective -viewof thezsetting mechanism. w l

-.Referring now in detail to the drawings, -10 designatesfa lock embodyingtheinvention com 11 0 prising a easing H attached to -the edg-eof-a doort2, and a keeper 7 l3 attached to -the --door jaznb 4 4. The casing ll- -is-provided with top, bottom and end walls, andis open-at therear, said'rearabeing enclosed :by; a *rearcover: plate F I 1. 15 Theend'wall I8 adjacent the edge -;of the door is provided withan opening l9'slidably receiving the .horizontal-bolt-lfl. The top 'andbottom walls .of the casing are formed with alignedhollow pore tions-2 I of square cross-section in which; there are mounted a-pair'of' vertical-bolts 2'2-.--.-Each=,o f

' the bolts- 22 is provided with'a portion -2-3- which' slides in the hollow portion: 2| and-has an axial through opening and a U -shaped portion- 24 ;pro'- vided with a stem-25 'ourna1ed in'said opening 25 interior surfaceof the covenplate i 1,-are formed I with openings pivotallyieceiving .thopins 2-8 and have openings =30Tat the router ends thereof; receijving pins '3.l' on"jthe portionslS oflthe vertical '.bolts"22.' p g v v V The horiz'ontal'bolt!fllislprovided withiapairoi racked ortions 3'3 adapted to codt the pinioris 26" on the tem 25 cane-bolt per-sienna; said'horizontal bolt 2 His further provi ed-mm a pair of rearwardextensions'fii and. at iritwni'cn thereiis slidablymoimted for" movement iiiia'dij- 'rection. perpendicular td' theidiie'ction 01. movement of saidhorizontal b o1t',a slider"31." .Flied to said sliderfl31is atubular'nieniherflflf" Aknob 4 I rotatably mounted the front ofthe -casing 1 r, isprov'i'de'dwith n arm 42 having atthe'outfr end thereof; 'a 4 3' i'eceivdwithin thtliblflar member 40; i

The pivot plates 29'' are formed, with slots 18 receiving =pins '41 -fiized to the horizont'al bolt. The slotsare so shaped that upon turning the kfiob to--lock the lock, the'horizoiitall b'olt is projected to th right, and during brjectifi indvefilfit thereof, th-Vi tioafl iboltsaryflist moved away "from each me ane th'e oniees 211; or sem vertical-"bolts are thenrotated fllfli due to the interengagement of the rack portions 33 with the pinions 26. The vertical bolts arethen moved inwardly toward each other to engage the keeper 13. The operation of the knob 4 l, the horizontal bolt 20, the vertical bolts '22 and the pivot plates 29 is described in detail in the patent of Charles Kemp and Irving Kemp, No. 1,937,897, patented Decemberfi, 1933.

Means'isprovlded to lock the lock by means of a key. To this end a sleeve 50 is journalled in a bearing formed on the rear cover plate 11. Fixed to said sleeve is a plate provided with a relatively short pin 52 and a relatively long pin 53. The tube 40 isformed with a semi-cylindrical portion 54 adapted to receive the longer pin 53.,

The short pin 52, however, cannot contact said semi-circular portion 54. 'A usual cylinder lock 51 may be mounted on the door l2 actuated'by a key 58 and provided with the usual connecting key through another 180", the pin 53 will merely lift" out of the semi-circular portion 54, to permit freerotation ofthe plate 5! without affecting the bolts. To unlock the lock by means of the key, the key is merely turned in a clockwise direction through first 180 without affecting the bolts to bringthe pin 53 into the semi-circular portion 54 and through another 180 during which the slider move'from the position shown in Fig. 3,

to the position shown in Fig. 1, for retracting the horizontal bolt.

The lock is furthermore provided with setting mechanism 54 shown in detail in Fig. 9 of the drawings, which when set, will prevent the lock from being opened by the knob 4: after looking the look by thekey 58. To this end, there is rotatably mounted on the tubular member 43 a member B5'having aprojecting finger 66 and being formed 'with a ledge 61 extending at right-angles to'the plane of said finger. The pin 52 on plate 5! can contact ledge 61 but notifingr '66. There is furthermore fixed to the cover plate I! a pin m the purpose hereinafter appearing. The pin 'lfl is"so positioned that every timethe lock is unlocked, the finger 65 will strike said pin and ,be movedto the position shown in Fig. l of the drawings, if the position of finger 55 has been relatively changed by striking unit 64. In said positionjthepin 52 on the plate 5| will not contact either'the fingerfiii or the ledge 61 upon locking the lock with the key. Fig. 3 shows the pin 52 as being located on the left of the ledge 51. .Thus normally, neither the finger 66 nor theledge STafiectsthe operation of the lock.

The setting'mechanism'M comprises a plate .15 slidably mounted on .thebottom wall of the vlockcasing. Extending upwardly'from the plate is a vertical wall 15. The plate I5 is formed with a slot 11;.adjacent the wall '15, and with a .pair of aligned slots 18. Said plate 75 is further- .tendingfjrom the plate 'I5 is an extension 80 Q from which there extends upwardly a wall 8| jprovidedwith a finger 82 disposed at right angles 15 is a bell crank lever 84 having an arm 85 projecting through the slot TI, and an arm 86 substantially parallel to the wall 18 and having a foot 88 extending upwardly at the outer end thereof.

The arm 86 is formed with a slot 90 receiving one end of a strip spring 9!, the lower end of which extends within the notch 79 and contacts the bottom wall of the casing. The arm 85 projects through a slot 93 in the bottom wall of the lock casing. Said slot 93 is longer than slot ll, permitting a limited pivotal movement of lever 84. It Will now be understood that the spring 9i normally tends to rotate the bell crank 84 in a clockwise direction, looking at Fig. 3 of the drawings. Movement of the bell crank, however, is limited by the ends of the slot 11.

Fixed to the bottom wall of the casing are a pair of pins 95 projecting through the slots 18 and having heads 96 contacting the top surface of the plate 15. It will now be understood that the setting mechanism may be moved to the right or to the left by engaging the downwardly projecting portion of the arm 85.

In Fig. l of the drawings, the setting mechanism is shown in inoperative or released position, having been moved to the extreme left, and the arm 85 substantially contacting the left end of the slot 93. When the setting mechanism is in released position, the finger 82 is so positioned that the finger 65 will not contact the same,

when the lock is-locked or unlocked either by the ting the door, and locking the lock with the key,

the finger 65 will contact the finger 82 as the horizontal bolt is projected, and be moved to substantially horizontal position as shown in Fig.

5 of the drawings. As shown in Fig. 5, the pin 52 will then be located beneath the ledge 61 and contact the same. Thereafter, the lock cannot be unlocked by the knob, for example, by a thief entering the premises through a window. This is due to the engagement of the ledge 67 with the pin 52. Looking at Fig. 5, movement of the arm 42 fixed to the knob 4| in a clockwise direction is prevented, since the ledge 61 contacts the pin 52' on the plate 5|, which cannot move. The lock may thus be unlocked only by the key 58.

With the parts as shown in Fig. 5 of the drawings, unlocking of the lock with the key will also cause the bottom corner H13 of the horizontal bolt'20 to engage the foot 88 of the bell crank 84 and slide the setting mechanism bodily to'the left, or inoperative position. In fact, whenever the lock is unlocked either by the key or by the knob, the horizontal bolt will engage the bell crank and move the setting mechanism to releasing or inoperative position. The setting mechanism is thus prevented from being in operative position except when it is set prior to leaving the premises The'likelihood of the setting mechanism being in 'operativeposition when it is notidesired, is thus minimized.

It will thus be seen that there is provided a device in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

sa a-ave As various -possible embodiments might be made of the a above invention; and*as various changes might" be made 'inthe embodiment set forth; it i s to be understoodthat'all matte r her'e' se't forth-or shown in the'accompanying draw ings 'is to be interpreted as illustrative and nota limiting sense; except as set forth in the Having thus described my invention, 1- claim as new and desire to secure by Letters Patent 1 -l. In-"a look, a bolt,'knob actuated means for locking and unlocking the lock, key actuated means for locking or unlocking thelockgmerns 'for'preventing unlookingof the lock by the knob after the lock has been locked by the key and means for-rendering the last mentionedmeans inoperative solas to'permit the ld'ek to' be u'n-} lockedb'y the knob after the lockhasi-be'en looked l 2. A look comprising a-casing, a'knob'rotatably mounted on said casing, means actuateaby said knob for looking or unlocking the look,- key actu- 'ated mechanism for looking or unlockingsaid lock, mechanism within said casing adapted in one position thereof to prevent unlocking "oflthe lock by'the' knob actuated mechanism after locking the look by the key actuated mechanism, and in anotherposition thereof, tope'rmit locking and unlockingofthe look by either the knob actuated mechanism or the keyactuated rriechanisn'i.

A look comprisng a casing, a knob rotatably mounted on-said casing, means'actuated by said knob for looking or unlocking'the lock, key actuated 'mechanism for looking or unlocking said -lock,-'mechanism within said casing adapted in one positiorithere'of to'prevent unlocking of the look by the knob, actuated mechanism after locking the look by thekey actuated mechanism, and in another position thereof, to permit locking and unlocking of the lock by either the knob-actuated inec nisin or the key actuated-mechanism, and means'for moving said mechanism to thelatter position' thereoi each time thelock isunlocked."

4. A look comprising a casing, a bolt slidably mounted therein, means for slidably moving said bolt comprising a'knob rotatably mounted on'said casing, an arm fixed [10 said knob, a plate slidably mountedonsaid bolt for movement in a direc tiontransverse to the direction of movement of said bolt, a tubular member mounted on said plate,

a pin on said arm received within said tubular member, said tubular *member having a semicircular portion, said casinghaving a rear cover,

a plate rotatably mountedon saidrear cover, key actuated means for rotatingsaid last mentioned plate, a 'pin on said last mentioned plateadapted to be received within said semi-circular portion,

a member on said tubular member having a finger and a' ledge, a pinon'said cover adapted to engage said finger upon retracting said bolt'for rotating.

said last member in one direction, meanswithin said casing adapted to engage said finger tocause rotation of the last member in the opposite direction-upon'projectin said bolt, and a secondpin on said last mentioned plate adapted to contact said ledge after said last member has been moved by said means when the bolt is projected to prevent retraction of said bolt without rotation of said plate by said key actuated mechanism to,

move said second pin away from said ledge. 1

5. A lock comprisinga casing, a bolt slidably mounted therein, means for slidably moving said bolt comprising a knob rotatably mounted on said casing, an arm fixed to said knob, a plate slidably mounted on said bolt for movement in a direction transverse to the direction of movement ofsaid bolt, a tubular member mounted on said plate, a pin on said arm received "within *said' tubular member, said tubular member having a. semi-circular portion, said casinghaving a rearcover; a

plate rotatably mounted on said rear cover, key actuated means for rotating said last mention'ed plate, a pin on said {last {mentioned pl'at'e adapted to be received within said semi-circular; portion, a member on said tubular member having a finger 'and'a ledge, a pin on said cover adapted to -en gage finger upon retracting said boltior rotating-said last member in one directiommeans within said casing: adapted to engage said finger t to cause rotation of the last member in the opposi'te' dire'ction upon projecting sa'id bolt, and a second pin on said last mentioned 'plate adapted to contact said ledge after said last member'has been'moved by-said means when the bolt is pro- 'jected to prevent retraction of said bolt without rotation-of said plate by said key actuated mechanism to move said secondpinaway from said ledge, said'means being movable to a position where 'it willfnot contact said finger as the bolt is projected; ff 1 r Y 61 A look comprising a casinga bolt slidably mountedtherein", meahs for slidably moving- -said bolt comprising a knob rotatably mounted'on said casing, an arm fixed to said-knob, a'plate'slidably mounted on'said bolt for movement in a direction transverse to the direction of movement of said bolt, a tubular member mounted onsaid' plate, a pin on saidarm received within said tubular member, said tubular member having a se'm'i-ciroularportion, 7 said' casing having a rear-cover, a plate rotatably mounted on said rear cover, key

actuated means for rotating said last mentioned plate, a pin on said last mentioned plate adapted to be received within said semi-circular portion,

by said means when thebolt is projected to 'pre vent retraction of said bolt without rotation of "said plate by said key actuated me chan'isnri'to move said second pinaway from said ledge, said means being movable to a positio'n'where itwill *notcontact said finger as the boltis projected,

and said means comprising a member'adapted to be engaged by said bolt and moved to said position bysaid bolt each time theboltis retracted.

- 7. In a look, a bolt, knob actuated 'means'for locking and unlocking the lock, key actuated meansfor lo'cking or unlocking the lock, means for preventing unlockingof the look by the knob after the lock has'been locked'by the key, means for rendering the last mentioned means' inoper -ative, said last means comprising amemb'er slid-- ably mounted on said casing said casing having a slot, and means on said member extending through said slot. 7

81A lock comprising a casing, a bolt slidably mounted therein a knob rotatably mounted on said casing, an arm fixed to said knob within said casing and having a pin: thereon, a rear cover for said casing, a plate mounted on said cover for rotation about the axis of said knob and having a pin thereon, key actuated means for rotating said plate, a member-operatively connected to said bolt and provided with a tubular'mernber receiving the. pin on said arm, and

having a semi-cylindrical portion adapted to receive the pin on said plate, said bolt being adapted ,to be projected and retracted by said knob or key actuated mechanism, a member rotatably'mount-.

ed on said tubular. member and having a finger, and a ledge extending beyond the plane of said finger, -a pin on said rear cover adapted to engagejsaid finger for rotating said last member in one direction to one angular position upon retracting said bolt, a second pin on said plate .out of contact with said ledge during retraction or projection of said bolt when said last member is insaid angular position, and means within said casing for moving said last member in an opposite direction to another angular position upon projecting said bolt by said key actuated mechanism, and said second pin being adapted and having a pin thereon, key actuated means for, rotating said plate, a member operatively connected to said bolt and provided with a tubular member receiving the pin on said arm, and having vasemi-cylindrical portion adapted to receive the pin on said plate, said bolt being adapted to be projected and retracted by said knob or key actuated mechanism, a member rotatably mount- "ed on said tubular member and having a finger, ;and a ledge extending beyond the plane of said finger, a pin on said rear cover adapted to 'engage said finger for rotating said last member in one direction to one angular position upon retracting said bolt,a second pin on said plate out of contact with said ledge during retraction or projection of said bolt, when said last member is in saidangular position, and means within upon projecting said bolt by said key actuated mechanism, and said second pin being adapted to engage said ledge in said other angular position of said last member to prevent retraction of said'bolt by said knob, said means comprising a member slidably mounted on a wall of said casing and being movable-to inoperative position where the same will not engage said finger or rotate said member in said opposite direction to said other angular position thereof upon projecting said bolt by said key actuated mechanism.

10. A look comprising a casing, a boltcslidably mounted therein, a knob rotatably mounted on said casing; an arm fixedto said knob within said casing and having a pin thereon, a rear cover for said casing, a plate mounted on said cover for rotation about the axis of said knob and having a pin thereon, key actuated means for rotating said bolt and provided with a tubular member receiving the pin on said arm, and having a semicylindrical portion adapted to receive the pin on said plate, said bolt being adapted to be projected and retracted by said knob or key actuated .bolt, when said last member is in said angular position, and means within said casing for moving said last member in an opposite direction to another angular position upon projecting said bolt by said key actuated mechanism, and said second pin being adapted to engage said ledge in said other angular position of said last member to prevent retraction of said bolt by said knob, said means comprising a member slidably mounted on a wall of said casing and being movable to inoperative position where the same will not engage said finger or rotate said member in said opposite direction to said other angular position thereof upon projecting said bolt by said key actuated mechanism, said slidably mounted member being formed with a slot, said wall being formed with a slot registering with but longer than the slot in said slidably mounted member, a bell crank lever pivoted on said slidably mounted member and having a finger projecting through said registering slots to the exterior of said casing, spring means for causing limited pivotal movement of said bell crank in one direction, said bell crank having a foot, and said bolt having a portion adapted to engage said foot for causing sliding movement of said slidably mounted member to inoperative position each time the bolt is retracted.

, 11. In a look, a bolt, knob-actuated means for locking and unlocking the lock, key actuated means for locking or unlocking the lock, means for preventing unlocking of the lock by the knob after the lock has been locked by the key, and means for rendering the last mentioned means inoperative so as to permit the lock to be unlocked by the knob after the look has been locked by the key, said rendering means being actuable from the exterior ofsaid casing.

12. A look comprising a casing, a knob rotatably mounted on said casing, means actuated by said knob for looking or unlocking the lock, key actuated mechanism for looking or unlocking said lock, mechanism within said casing adapted in one position thereof to prevent unlocking of the look by the knob actuated mechanism after locking the look by the key actuated mechanism, and in another position thereof, to permit looking and unlocking of the look by either the knob actuated mechanism or the key actuated mechanism, and means projecting from said casing for controlling the position of said mechanism.

FREDERICK W. HEYEL. 

